A resident of Japan for nearly a decade, Guillaume Erard trains at the Aikikai Hombu Dojo, where he received the 5th Dan from Aikido Doshu Moriteru Ueshiba. He also holds a 3rd Dan in Daito-ryu Aiki-jujutsu, the secretive art that Morihei Ueshiba learned from Sokaku Takeda. Erard is Deputy Secretary of International Affairs of the Daito-ryu Aiki-jujutsu Shikoku Headquarters. He is also passionate about science and education and holds a PhD in Molecular Biology.